Franco-Santos, Rita Melo; Auel, Holger; Boersma, Maarten; De Troch, Marleen; Meunier, Cédric Léo; Niehoff, Barbara (2018): Vital rate measurements and carbon and nitrogen contents of Temora longicornis under different nutrient regimes [dataset publication series]. Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, PANGAEA, https://doi.org/10.1594/PANGAEA.886050
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Abstract:
The copepod Temora longicornis depends on constant prey availability. Given that climate change may induce food regime shifts, our research goal was to understand copepod energy allocation in relation to diet quality. The working hypothesis was that Temora performs better on the diet whose elemental ratio is closest to its own. Diatoms (Diat) and dinoflagellates (Dino) cultured in nutrient-replete (+) and nitrogen-depleted (-) conditions were fed to the copepods. Ingestion, respiration, excretion, and egg and faecal pellet production rates were measured. Carbon (C) and nitrogen (N) budgets were built to investigate differences in dietary C and N partitioning. Copepods fed with nitrogen-depleted diatoms (Diat-), which had the most different C:N ratio to that of T. longicornis, had high metabolic losses and low growth. In contrast, copepods fed with nitrogen-rich dinoflagellates (Dino+) of closer C:N ratio had high metabolic losses, but the highest investment into somatic and reproductive tissue. The results indicate that, under the current climate scenario and nutrient-replete conditions, dinoflagellates are a better food source for T. longicornis. Furthermore, ingestion, respiration, and faecal pellet integrity are adversely affected by low quality food; and egestion is a main pathway in copepods for eliminating excess carbon.
Related to:
Franco-Santos, Rita Melo; Auel, Holger; Boersma, Maarten; De Troch, Marleen; Meunier, Cédric Léo; Niehoff, Barbara (2018): Bioenergetics of the copepod Temora longicornis under different nutrient regimes. Journal of Plankton Research, 40(4), 420-435, https://doi.org/10.1093/plankt/fby016
Project(s):
Biological Oceanography @ AWI (AWI_BioOce)
Coverage:
Latitude: 54.188330 * Longitude: 7.900000
Date/Time Start: 2016-05-17T09:30:00 * Date/Time End: 2016-06-04T23:44:00
License:
Creative Commons Attribution 3.0 Unported (CC-BY-3.0)
Size:
9 datasets
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Datasets listed in this publication series
- Franco-Santos, RM; Auel, H; Boersma, M et al. (2018): Carbon and nitrogen content of the diet of Temora longicornis under different nutrient regimes. https://doi.org/10.1594/PANGAEA.895875
- Franco-Santos, RM; Auel, H; Boersma, M et al. (2018): Carbon and nitrogen contents of Temora longicornis under different nutrient regimes. https://doi.org/10.1594/PANGAEA.886010
- Franco-Santos, RM; Auel, H; Boersma, M et al. (2018): Efficiency calculations for Temora longicornis under different nutrient regimes. https://doi.org/10.1594/PANGAEA.886012
- Franco-Santos, RM; Auel, H; Boersma, M et al. (2018): Egg production rates of Temora longicornis under different nutrient regimes. https://doi.org/10.1594/PANGAEA.886013
- Franco-Santos, RM; Auel, H; Boersma, M et al. (2018): Excretion rates of Temora longicornis under different nutrient regimes. https://doi.org/10.1594/PANGAEA.886014
- Franco-Santos, RM; Auel, H; Boersma, M et al. (2018): Somatic growth rates of Temora longicornis under different nutrient regimes. https://doi.org/10.1594/PANGAEA.886031
- Franco-Santos, RM; Auel, H; Boersma, M et al. (2018): Grazing rates of Temora longicornis under different nutrient regimes. https://doi.org/10.1594/PANGAEA.886018
- Franco-Santos, RM; Auel, H; Boersma, M et al. (2018): Prosome lengths of Temora longicornis under different nutrient regimes. https://doi.org/10.1594/PANGAEA.886025
- Franco-Santos, RM; Auel, H; Boersma, M et al. (2018): Respiration rates of Temora longicornis under different nutrient regimes. https://doi.org/10.1594/PANGAEA.886049